package com.ywgt.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;
@Service
public class PaymentService {

    public String paymentInfo(Integer id){
        return "线程池："+Thread.currentThread().getName()+"paymentInfo"+id+"成功";
    }

    @HystrixCommand(fallbackMethod = "timeoutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value ="5000")
    })
    public String timeout(Integer id){
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        //int i=10/0;
        return "线程池："+Thread.currentThread().getName()+"timeout"+id+"超时";
    }

    public String timeoutHandler(Integer id){
        return "线程池："+Thread.currentThread().getName()+"timeoutHandler"+id+"超时处理";
    }

    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback" ,commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(Integer id){
        if(id<0){
            throw new RuntimeException();
        }
        String serialNumber= IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t"+"调用成功，流水号"+serialNumber;
    }

    public String paymentCircuitBreaker_fallback(Integer id){
        return "id不能为负数，请稍后再试"+id;
    }
}
